Hadronic structure on the light-front VI. Generalized parton distributions of unpolarized hadrons

TL;DR

This paper investigates the generalized parton distributions (GPDs) for unpolarized hadrons, including nucleons, delta particles, and mesons, using light-front dynamics and lowest Fock states, comparing results with lattice QCD data.

Contribution

It provides a detailed analysis of unpolarized GPDs for various hadrons on the light front, extending previous work and connecting GPDs to form factors and lattice results.

Findings

GPDs reconstructed from light-front models match lattice QCD results.

Charge and gravitational form factors are derived from GPDs.

Results highlight differences in hadron structure sizes.

Abstract

We discuss the generalized parton distributions (GPDs) for unpolarized hadrons, as a continuation of our recent work on hadronic structure on the light front. We analyze the unpolarized GPDs for the light nucleon and delta, as well as generic mesons, using the lowest Fock states. We use these GPDs to reconstruct the charge and gravitational form factors, and discuss their relative sizes. The results are also compared to reported QCD lattice results.